David Albert Schwerbel
Engineers at Park St, Menasha, WI

License number
Colorado 37034
Issued Date
Dec 13, 2002
Renew Date
Jan 1, 2005
Expiration Date
Dec 31, 2006
Type
Professional Engineer
Address
Address
398 Park St, Menasha, WI 54952

Professional information

David Schwerbel Photo 1

Method For Dehydrating Biomass

US Patent:
2007022, Sep 27, 2007
Filed:
Mar 27, 2006
Appl. No.:
11/389704
Inventors:
Michael Femal - Arlington Heights IL, US
Robert Stephenson - Appleton WI, US
Frederick Tegge - Appleton WI, US
David Stringham - Appleton WI, US
David Schwerbel - Menasha WI, US
Jon Kellett - Geneva IL, US
International Classification:
C08H 5/02
US Classification:
527400000
Abstract:
Organic substrates such as grain by-products: wet cake, mash, stillage, wet brewers cake are dewatered in a relatively low energy, low-heated gas flow, negative pressure, four stage process consisting of leaching with organic solvent, mechanical dewatering, evaporation and reclamation of the organic solvent in an environment of a stable gas flow. The dried organic substrate is processed into a dry distiller's grains with solubles which is free-flowing quality substance suitable for food or other uses at much lower substrate drying temperatures generally below 200° F. Conveniently, the solvent and the stable gases are recovered from the water-solvent leaching and dewatering process by a distillation tower and feedback loop system allowing the recycling of the solvent and stable gas while reducing the level of air emissions in the unique drying system.